Gas-burner.



Patented July 28, 1914.

'I'HE NORRIS PETERS CO., PHOTO-LITHO., WASHINGTUN. D. C

" UNITED v 'roHN E. GARNAHAN, or CANTON, oHro;

presence of a suflicient amount of air in the mixing chamber for a proper combustion of vthe gas, fory facilitating the flow of gas when the pressure is weak, and for ef-v fecting a proper mixing of the gas and air within the mixing tube anda distribution of the flame at the outlet thereof. y

ik vpreferred embodiment of the inventionis illustrated in theaccompanying draw` ing, forming part hereof, in which the `figureis a side elevation, partly in longitudinal section, of the improved burner, and in which similar numerals refer to similar parts throughout the drawing.

The burner includesthe mixingtube 1,y

. the gas pipe .2 and one or moresteam pipes 3;`the mixing tube being open at its rear` inlet end and being preferably provided with the distributing cap 4 on its forward outlet end, the gas pipe beingopen at its forward discharge end and being preferably provided withv the controlling valve 5, and

the steam pipes being preferably provided with the controlling valves 6.

The forward or'outlet end of the mixing tube 1 is shaped as an elongated open-ended cylinder, and is partially closed atfits forward end by the distributing cap 4 which is provided with numerous apertures 7 for effecting a thorough mixing and proper disf tribution of the flame.

The forward or discharge end 8 of the gas pipe is inserted a substantial distanceinto and within the rear or inlet end 9 of the mixing tube, and isof suii'iciently less diam-k ldistributing ba'ie. i

annular interval l0 around the gas pipe,

which steam pipes preferably terminate short of the discharge end rof the gas pipe.

In the operation of the burner, the gas s flows forward from the discharge end of the gas pipe into and through the mixing tube, and, when the pressure of the rgas is high enough, the suction caused thereby draws `a sufficient amount of air into the `Specification of Letters Patent. Patented July 1914i, p Application filed May 18, 1912. Serial No. 698,106. il

mixing tube, through the annular channel inits rear open 'end around the gasy pipe, to cause aproper combustionof the gas; and the mixing of the gas and air is facilitated by the baffle formed by the `distributing head, which may be functionallyreferred to asa IVVhen the pressure of the gas is too lowk It will be understood that the use of the lsteam pipes is not essential kwhen the pressure of gas is high enough to create a proper suction of air around the discharge end of the gas pipe; and furthermore that comi pressed air may be substituted for steam to supplement the suction caused by the flow of. gas, or to facilitate the flow'of gas. And the apertures 7aL may be providedv around the end of the mixing tube for a further distribution of the flame.v i

A gas burner including a mixing tube havand having its rear-pend open, `a gas pipe of less diameter than the mixing tube, yhaving fto cause a sufficient lsuction of airthrough the rear end of the mixing tube', the valves` ing a distributing baiie at its foi-ward end,

its forward-outlet end open and inserted a nular channel and terminating short of the substantial distance into and Within the reargas pipe. inlet end of the mixing tube forming an annular channel around the inserted end of l n the gus pipe, andvone or more. ste'arnpipes .'Witne'sses: having their discharge ends inserted a sul- A. J. MSKREY, stantal distance into and Within said an- CHAS. M. BALL.

JOHN E. CARNAHAN.

Copies of this patent may be obtained for vei o'ents'each, by addressing the Commissioner of Patents, Washington,.D. C. 

